The petunia homologue of the Antirrhinum majus candi and Zea mays A2 flavonoid genes; homology to flavanone 3-hydroxylase and ethylene-forming enzyme

The synthesis of anthocyanins in higher plants involves many enzymatic steps. Here we describe the isolation and characterization of a cDNA, ant17, which encodes a protein that has 73% amino acid sequence identity with the candi gene product of Antirrhinum majus and 48% with that of the maize a2 gen...

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Bibliographic Details
Published in:Plant molecular biology 1993-08, Vol.22 (5), p.893-897
Main Authors: Weiss, D. (Vrije Univ., Amsterdam (Netherlands). Vakgroep Erfelijkheidsleer), Luit, A.H. van der, Kroon, J.T.M, Mol, J.N.M, Kooter, J.M
Format: Article
Language:English
Subjects:
ACIDE AMINE
Amino Acid Sequence
AMINO ACIDS
AMINOACIDOS
ANTIRRHINUM
Base Sequence
Biological and medical sciences
CODE GENETIQUE
CODIGO GENETICO
DNA - isolation & purification
ENZIMAS
ENZYME
ENZYMES
FLAVONOIDE
FLAVONOIDES
FLAVONOIDS
Flavonoids - genetics
Fundamental and applied biological sciences. Psychology
GENE
GENES
Genes. Genome
GENETIC CODE
Lyases - genetics
Mixed Function Oxygenases - genetics
Molecular and cellular biology
Molecular genetics
Molecular Sequence Data
PETUNIA
Petunia hybrida
Plant Proteins - genetics
Plants
Sequence Homology, Amino Acid
ZEA MAYS
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Summary:The synthesis of anthocyanins in higher plants involves many enzymatic steps. Here we describe the isolation and characterization of a cDNA, ant17, which encodes a protein that has 73% amino acid sequence identity with the candi gene product of Antirrhinum majus and 48% with that of the maize a2 gene. This protein may therefore be involved in the synthesis of anthocyanins in the steps after the action of dihydroflavonol 4-reductase. This is consistent with the absence of ant17 expression in the regulatory anthocyanin mutants of petunia an1, an2 and an11. Furthermore, ant17 is predominantly expressed in corollas and anthers and is induced by gibberellic acid.
ISSN:0167-4412
1573-5028
DOI:10.1007/bf00027374